Questions tagged [audio]

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15 views

How to control material property by using audio?

Is there a way to control the mapping property from the material object to an audio of choice for example I have this as of right now I have it set to randomly animate the location of the mapping ...
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16 views

Displacement on single vertex inside of a mesh

I am currently trying to make individual joints (vertexes) on a human figure move based on an audio file. I've done this for objects in the past for nonspecific movement by using a displacement ...
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8 views

Video Sequncer (Audio only) resets when playing on Animation Timeline

So I'm trying to do a lip-sync animation with a model, I have one of Blenders own models and added audio from Youtube video into the Video Sequencer but when I go back on my Animation Timeline the ...
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9 views

Adding Videos as Planes audio problem

When I ADD a video (mp4 format) as a plane, I don't hear any audio from the video. Video is playing ok though. Any ideas why ?
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33 views

How to fix an offset audio?

I'm working on a music video. I came back from a break on this projet and started to work on new stuff when I realised, 3 days later, that the audio was offset. I think it's a weird offset, a kinda ...
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1answer
23 views

batch rendering multiple audio strip files

I have some edited audio strips inside sequence editor and I want to batch render them because rendering them one by one will take an eternity. so I thought of writing a simple add-one to do so and I ...
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19 views

Audio was out of sync whenever I didn't play it from the start

Whenever I don't play the animation from the start, the audio would be out of sync (I'm animating a part of a music video), and when its out of sync it'll probably be hell to try to do lip-syncing. I'...
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9 views

Audio volume only decreases for a few seconds

When I click on “sound” settings, I can see that I can adjust volume from 1 to for example 0.200. However, when I do that, it only remains 0.200 for one or a few frames max and then returns back to 1....
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16 views

Invalid audio strips with negative length

When I add audio strips, they are inverted and they don't play. They also are unable to move with the mouse or with the G button. This audio plays successfully if I open them not in Blender. How can I ...
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40 views

Audio-reactive 3D

I recently found out about Blender. I was wondering if it would be possible to create an audio-reactive/responsive 3D object which moves (or does something) in a particular way when a sound is ...
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1answer
20 views

sound control smoke particle

I try to create a music, and I would like to do a simple animation , just a black background with some smoke on the front that would be animated following the sound of the track, I have no idea how ...
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1answer
44 views

Using 'Bake Sound to F-Curve' to Drive Animation — Invalid Python Expression

I am trying to use sound to drive my animation like in the second section of this tutorial (https://www.youtube.com/watch?v=OAes-ITNaGA&ab_channel=quollism) I have created a utility bone with '...
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1answer
30 views

How to keyframe the volume of a speaker with python

one can set the keyframe of an objects location with: bpy.context.object.keyframe_insert(data_path="location", frame=1) and it will set the keyframe of ...
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34 views

VSE: Why is the first part of my sound cut off?

In track 1 of the Video Sequence Editor, I inserted the same piece of audio several times: But when I render out the video, the sound byte sounds different on every occurence. When I extract the ...
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12 views

Why doesn't custom fps work? [duplicate]

AV sync is turned on. Still the sound moves out of sync after render. The video I'm trying to edit has a strange fps: 30.159052 when I view the codec information in VLC media player. I'm guessing ...
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1answer
50 views

Audio sync issues with speed control, pitch and keyframes

I have a video which I want to fast-forward during some sections. I can accomplish this by adding speed control, keyframing the speed factor, and for audio keyframing the pitch. This works well if I ...
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17 views

Problem about a code. This the code is crash (audio visualization)

I have problem. I write a code to create visualization music, but this the code is crash everytime, when I run it. I need help ! What is going on ? Code : ...
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2answers
32 views

No animation in Curves on using Bake sound to fcurves

In Blender2.9 , on adding location drivers to the origin of a Curve, there is no animation eventhough the location values are generated by baking sound to fcurves. ...
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1answer
17 views

Blender Shifts Audio Sometimes

I apologize for the lack of information; I am new to Blender and am unsure why this is happening. I recently started using Blender for video editing as I wanted an open-source video editor. In general,...
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31 views

How “Bake sound to F-Curves” works?

Good morning. I would like to know how the function "Bake sound to F-Curves" works (Graph editor) ? Is this the function use the Fourier analysis (Fast Fourier Transform, Short-Time Fourier ...
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43 views

Blender 2.8 not rendering video

I am splicing several clips together with audio. Everything plays fine in preview. I have set the start and end frames, changed the format to ffmpeg, container mp5, codec h264, audio codec aac, ...
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1answer
28 views

Does changing the fps change the speed of the animation? [duplicate]

I had created animation in blender 2.76 with sound effects, at 30 fps, and rendered it at 60 fps. However, when I saw the rendered result, the video was faster than the sound. Does increasing the fps ...
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0answers
16 views

How to make a particle independant from the others after being generated?

I'd like to emit particles from a mesh according to a sound. It works but EVERY generated particle react to the sound, not only the on who is currently being generated. I hope it's clear, thank you ...
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0answers
16 views

Chroma key removal removes audio from rendered video

I am trying to follow a tutorial to remove chroma key from my video and it works well for the video part. But the final rendered output is missing the audio. Not sure if it is the intended way for it ...
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0answers
111 views

How to smooth out baked sound to f curves?

Ok, I have several scaling animations synced to audio via "Bake sound to f curves" and I've applied an envelope modifier to control the max value the curve can hit. The curve looks like this ...
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0answers
112 views

Audio not working for iOS devices

After rendering an animation, the audio is only reproduced on Android devices, for iOS the video stay muted. My audio files are on .wav format and render settings are as follow: someone has gone ...
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0answers
20 views

after editing play back problems

I'm new to Blender and have to make instructional videos for work. I use CamStudio for the screen captures around four per finished video. I use Blender 2.8 and 2.9 for editing. There are a lot of ...
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0answers
19 views

Are the audio effects of the Blender movies available to creat dubs in diferent languages?

I would like to dub a few of the Blender movies, I was mainly thinking about Agent 327, but the other movies could be interesting too. Are the different audio lines from the movie available in the ...
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15 views

Workflow: render an animation with a soundtrack in one go, or render the animation then import it as a strip in the VSE?

I am creating an animation with a soundtrack. I have a 3D window open with a timeline, and a VSE window open with the audio synced so I can time the animation with the sound. Can I render the finished ...
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0answers
291 views

Blender audio visualization - waveform line?

Alright, followed all the relevant tutorials on Blender audio visualizations but they all involve either scaling/distorting objects with f curves or the bars type visual like this - https://www....
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0answers
20 views

How to add audio keyframes in Blender 2.90? It keeps ignoring the volume level changes

I've just got to grips with using blender for the first time and I got to the audio and in the keyframes it wont let me change the volume for fade in and fade out. It just remains the same default ...
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2answers
83 views

Is it possible to use object motion to drive audio properties in Blender?

I've seen plenty of examples on how to drive motion of objects in Blender with audio, but I'm trying to do the opposite - drive audio properties based on the motion of objects. More specifically, I'd ...
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17 views

How do I set the type of an NlaStrip?

I'm trying to add a speaker object with an attached NlaStrip in code, like the add_speaker operation does, but when I use ...
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0answers
32 views

Audio missing after rendering video

Every time I render my video's, the audio goes missing. I don't hear any audio during editing or post render. I've put Audio Codec to 'ACC' or 'MP3', so I don't understand why this is an issue. Thanks....
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1answer
18 views

Unable to set number of output channels for Audio Render

I can't seem to find where to set the number of output channels for an Audio Render. I can control the output format for live playback in preferences but this seems to have no effect on audio ...
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0answers
18 views

How can i mute video

I have 2 video files. Drag in video Editing. 1 file is my model animation, another file is download from youtube (for background music) it has video+music. I want to mute the video of the file which ...
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0answers
34 views

Audio moved while scrubbing

I'm new to Blender but have some experience with 3D animation. Problem: I'm trying to make a lip sync with a 3d character to a piece of audio as a test for a Minecraft video. The audio starts "...
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0answers
47 views

Speaker object doesn't create sound in particle system

I'm trying to get the speaker object to work with a particle system so it can create sound effects for example set up a plane to emit multiple speaker objects and each speaker would create sounds in ...
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0answers
8 views

Audio doesn't play after transferring blender file

To make it short, the audio on my project isn't playing. When I open up another project and insert audio, it plays perfectly. So I feel like this is more of a project problem than a setting problem. I ...
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22 views

blender audio frequency detectionrange limit 1000000khz

i want to use blender to detect frequency, but it only has a limit, i need it to detect frequencies of upto penta herdz or above. no limit. the frequencies are usually used for audio visualization and ...
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1answer
65 views

VSE: No Audio In Rendered File, Mixdown causes crash

Ever since switching from Windows to Linux, I have been unable to render any videos in Blender's VSE with the audio tracks. The audio codec is selected in the scene tab: However after rendering with <...
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15 views

how do i fix this running problem [duplicate]

Every time i get into blender it does this and then it kicks me out
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1answer
647 views

How to change range of “bake sound to f curves”?

Alright, Im trying to modify the "damp" parameter of a particle system in accordance with the beats of an audio file. So far, I "insert keyframe" on the damp parameter, go to F ...
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1answer
147 views

Workflow for adding audio to scenes and combining them in the VSE

I've been trying to experiment with a workflow for putting all animation, editing, and post-processing into one blender file: 0000_Master combines clips of all ...
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0answers
96 views

(VSE) How do I speed up audio by more than 10 times?

I'm trying to speed up some video by a factor of 20, audio included. The video strip is easy: I just add a speed control transform strip. The audio part isn't as easy. Transform strips don't work on ...
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0answers
29 views

Blender is outputting blank screen video with no audio

I am working on a project that has multiple simultaneous sound files and image video files layered over each other, I'm not sure if this effects what I have to do to output. When I try to render, the ...
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0answers
25 views

Audio and Sequence Strips in Video editor

I created scene strips synced to respective audio. Then I created a seperate strip only for video editing and imported the said scene strips to the same. But these scene strips are not importing with ...
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1answer
322 views

Grease Pencil to Video Sequencer

I imported sound in video editor, cut it as needed and did animatics in sync to the sound using 2D animation tab. But when I render the same my output is a blank frame. Possibly because I am not able ...
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1answer
21 views

JackAudio disabled in Blender's OSX official release?

I need to use JACK as Blender's audio device, mostly to sync with Ardour via Jack Transport. I've done this in linux but in OSx (10.13) Jack doesn't show in the audio devices list. bpy.app....
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26 views

How to keep audio and video synced rendering an animation? [duplicate]

I am doing a voice over for my video. It’s suppose to be my first dev log. So my audio and video is completely separate. Why does the video render faster than the audio, how do I fix this? I am using ...

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